LATEST ATI TEAS 7 SCIENCE EXAM.HIGLY
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1. Which of the following parts of the central nervous system releases chemicals that
regulate the pituitary gland?
o Hypothalamus
o Cerebellum
o Thalamus
o Spinal cord
2. The shortening of a sarcomere in skeletal muscle is directly due to the interactional of
which of the following?
o Acetylcholine and acetylcholinesterase
o Pepsin and pepsinogen
o Myosin and actin
o Dynein and kinesin
3. Mutations in which of the following types of cells can be inherited by offspring?
o Ovarian
o endocrine
o neural
o muscle
4. Which of the following describes the function of tendons?
o Tendons attach skeletal muscle to bone
o Tendons attach two bones
Latest ATI TEAS 7 SCIENCE EXAM
, Latest ATI TEAS 7 SCIENCE EXAM
o Tendons attach bones to ligaments
o Tendons attach skeletal muscles to ligaments
5. Which of the following substances is excreted by sweet glands in response to the
breakdown of protein and the formation of ammonia?
o Lysoymes
o Water
o Urea
o Sebum
6. Which of the following terms describes the removal of metabolic waste from the
body?
o Secretion
o catabolism
o anabolism
o excretion
7. A cell is placed in a hypertonic solution. Which of the following describes the
resulting osmosis?
o There is no flow of water
o The net flow of water into and out of the cell is zero
o There is a net flow of water out of the cell
o There is a net flow of water into the cell.
8. Which of the following is an example of active transport?
Latest ATI TEAS 7 SCIENCE EXAM
, Latest ATI TEAS 7 SCIENCE EXAM
o Aquaporins in kidney cells that help concentrate urine
o Movement of substance from an area of high concentration to an area of low
concentration
o Movement of a sodium and potassium across the cell membrane against the
concentration gradient.
o Loss of water from a cell in a hypertonic solution
9. Which of the following vessels is responsible for carrying blood from the upper body
to the right atrium of the heart?
o Pulmonary veins
o Aorta
o Pulmonary arteries
o Superior vena cava
10. Carbohydrates are composed of which of the following?
o Nucleic acids
o Monosaccharides
o Isoprenoids
o Amino acids
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11. The following equation summarizes the carbonic acid-bicarbonate ion buffer system
of the blood CO2+H2O →H2CO3 → HCO3- +H+
Which of the following equations shows the reaction that takes place when there are
excessive H+ ions?
o H2CO3 → CO2 + H2O
Latest ATI TEAS 7 SCIENCE EXAM
, Latest ATI TEAS 7 SCIENCE EXAM
o HCO3- + H+ → H2CO3
o CO2 + H2O → H2CO3
o H2CO3 → HCO3- +H+
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12. A student investigating the importance of wavelengths above and below the visible
spectrum for photosynthesis sets up an experiment as follows over a 2 month period,
all with illumination at 1 meter distance from plants grown with the same sol and
watering conditions
3 Arabidopsis plant exposed to ultraviolet light (UV)
3 Arabidopsis plants exposed to infrared light (IR)
3 Arabidopsis plants exposed to white light
At the end of the experiment, she finds that the IR treated plants are scorched, the UV
treated plants have wilted, but the white light created plants are growing normally.
Which of the following statements is most likely to be correct?
o Three plants do not produce sufficient replications to draw a conclusion
o Wavelength of lights the only variable that has been changed between groups
o The wavelength of light does not affect photosynthesis
o Infracted light contains more energy than the other wavelengths.
13. Which of the following is a weakness of a correlational study?
o Cannot be replicated
o Cannot determine causation
o Inability to control independent variables
o Too many variables to control
14. A vasectomy is a procedure in which the vas deferens are cut. Which of the following
describes why a vasectomy leads to infertility?
o The vasectomy blocks the movement of sperm from the prostate gland to the
bulbourethral gland
Latest ATI TEAS 7 SCIENCE EXAM